Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1887-09-27
n CLARENCE KING.

The Eminent GeoIogist interviewed
No Reason why Ore should Not
be Found mt Great Depth i'm Ruby
Hill.
Learning that the eminent geologist,
Clarence King, was in town last Saturday
evening, our reporter called on him at the
Jackson House, and took occasion TO in
terview him in relation to Eureka Dis
trict, and during an hours conversation
was gratifed with the favorable opinions
he expressed. He said that he did not see
anything TO warrant the belief that the
ores Of Ruby Hill are exhausted, and that
the limestone ia no. the only formation
that may contain ore in this district. In
fact, he said, ore may be found at q much
greater depth than has yet been reached
in Ruby Hill, either in the quartzite or
the shale, depending on whether the condi-
tions are favorable or not to have received
il. II assures and caves exist in these
formations, such as have been found in
the limestone, and the pressure from below
has forced ii there, there 1t can be found.
| Ore is where you find it, and it may be
found anywhere that the conditions are
favorable for it. That ore does exist in
the limestone, 80 far as has been proved
by exploration, was owing to its having
been deposited in the cracks and assures
that were made In the ground by upheav-
ais and disturbances. The limestone con
tains q great deal Of fuoric acid, which
has the effect OF decomposing the rock
more than anything else that ii contains.
The ore had been disseminated in very
small quantities all through the limerick,
in the same manner as it might have been
in any other rock, and was washed, pre-
cipitated-aided by decomposition-and
deposited in the cracks and assures
where it accumulated.
Prof. Clarence King takes the view that
we find adopted by j. 8. Curtis In his
memoir Of the Eureka mines submitted TO
G.. F. Becker, the geologist then In charge
of the Pacific Division of the United
States Geological Survey, which is, that II
assures and caves occur below. in deeper
and unexplored ground similar to those
that have been discovered above, there
can be no satisfactory reasons why ore
should not be found at such depths also.
The main fissure in Ruby Hill has q dip
of about 10 degrees, and the face Of the
quarszite dips towards it at about 40 de-
grees. No signs of the fissure entering the
quartzite had been observed up to the
time that the United States geological
survey was completed, and it was not ex-
pected that itwould do 80 until much
greater depth would be obtained. For OBJ
vious reasons il is supposed that the fs-
sure will be found to enter the quartzite.
unless the dip Of the former conforms to
that of the latter. It has been shown that
the assure Is so widely extended that it
will not disappear at any depth to which
exploration can be carried, and bearing
this in view, Prof. Clarence King gives the
opinion that ore may be found in the
quartzite by deeper exploration, and that
there is no reason why 1t should not be.
He said that there is no place that he has
visited that presents more interesting geo.
logical features than Eureka District and
| its surroundings, and it is a pity that the
principal companies on Ruby Hill do not
| agree to aid one another in sinking the
| LOGAN shaft, and explore to determine
whether or not large bodies Of ore exist in
the ground at greater depth.
He informed our reporter that he will
remain in Eureka for a few days after his
return from Hot Greek, to which place he
has gone to examine some mines, and we
shall be highly gratifed if he will permit
us to record his views, not only In further
reference to Ruby Hill, but to all OF Eu-
reka District.